mirror of
https://github.com/jart/cosmopolitan.git
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f684e348d4
- Document sigaction() - Simplify New Technology fork() code - Testing and many bug fixes for mprotect() - Distribute Intel Xed ILD in the amalgamation - Turn Xed enums into defines to avoid DWARF bloat - Improve polyfilling of SA_SIGINFO on BSDs and fix bugs - setpgid(getpid(), getpid()) on Windows will ignore CTRL-C - Work around issues relating to NT mappings being executable - Permit automatic executable stack override via `ape_stack_pf`
55 lines
2.7 KiB
C
55 lines
2.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2018 Intel Corporation │
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│ Copyright 2019 Justine Alexandra Roberts Tunney │
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│ │
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│ Licensed under the Apache License, Version 2.0 (the "License"); │
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│ you may not use this file except in compliance with the License. │
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│ You may obtain a copy of the License at │
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│ │
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│ http://www.apache.org/licenses/LICENSE-2.0 │
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│ │
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│ Unless required by applicable law or agreed to in writing, software │
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│ distributed under the License is distributed on an "AS IS" BASIS, │
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│ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. │
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│ See the License for the specific language governing permissions and │
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│ limitations under the License. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "third_party/xed/x86.h"
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#include "third_party/xed/x86isa.h"
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asm(".ident\t\"\\n\\n\
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Xed (Apache 2.0)\\n\
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Copyright 2018 Intel Corporation\\n\
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Copyright 2019 Justine Alexandra Roberts Tunney\\n\
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Modifications: Trimmed down to 3kb [2019-03-22 jart]\"");
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asm(".include \"libc/disclaimer.inc\"");
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bool xed_isa_set_is_valid_for_chip(int isa_set, int chip) {
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unsigned n, r;
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n = isa_set / 64;
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r = isa_set - (64 * n);
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return !!(kXedChipFeatures[chip][n] & (1ul << r));
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}
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bool xed_test_chip_features(struct XedChipFeatures *p, int isa_set) {
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unsigned n, r;
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n = isa_set / 64;
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r = isa_set - (64 * n);
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return !!(p->f[n] & (1ul << r));
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}
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void xed_get_chip_features(struct XedChipFeatures *p, int chip) {
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if (p) {
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if (chip < XED_CHIP_LAST) {
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p->f[0] = kXedChipFeatures[chip][0];
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p->f[1] = kXedChipFeatures[chip][1];
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p->f[2] = kXedChipFeatures[chip][2];
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} else {
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p->f[0] = 0;
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p->f[1] = 0;
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p->f[2] = 0;
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}
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}
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}
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